Oxide-ion conductivity of bismuth aluminates

Autor: J.P. Zebrowski, Ira Bloom, M.C. Hash, Michael Krumpelt, K. M. Myles
Rok vydání: 1992
Předmět:
Zdroj: Solid State Ionics. :739-747
ISSN: 0167-2738
DOI: 10.1016/0167-2738(92)90249-o
Popis: Novel compounds in the Bi-Al-O and La-Bi-Al-O systems were prepared and tested for conductivity at high temperatures (500–800°C) in an oxygen gradient cell. The purpose is to develop an electrolyte material that will permit operation of a solid oxide fuel cell at 500–800°C instead of the 1000°C now used. The Bi-Al-O and La-Bi-Al-O compounds were found to have conductivities of about 10 −2 ohms −1 cm −1 and 10 −1 ohms −1 cm −1 at 800°C, respectively, in an oxygen gradient and ma y have the needed conductivity and stability toward humidified hydrogen for use as fuel cell electrolytes.
Databáze: OpenAIRE